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Research Article | DOI: https://doi.org/10.31579/2642-9756/026
1 Lecturer of Obstetrics and Gynecology, Faculty of Medicine, Benha University, Benha, Egypt.
*Corresponding Author: Waleed Tawfik, Lecturer of Obstetrics and Gynecology, Faculty of Medicine, Benha University, Benha, Egypt.
Citation: Waleed Tawfik(2020) Assessment of different management options used in morbidly adherent placenta and pregnancy outcomes. J Women Health Care and Issues, 3(2): Doi:10.31579/2642-9756/026
Copyright: © 2020.Waleed Tawfik. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Received: 29 March 2020 | Accepted: 04 April 2020 | Published: 10 April 2020
Keywords: morbidly adherent placenta; pregnancy; hemostatic sutures
The aim of this work is evaluation of different management options for patients with morbidly adherent placenta and its effect on pregnancy outcomes to find the best method of management to decrease morbidity and mortality. In this prospective study, there were 42 patients diagnosed as having morbidly adherent placenta previa and hospitalized between January 2019 to February 2020.
Different management options performed to patients with morbidly adherent placenta previa were recorded, blood loss was estimated for each patient, operative procedures, maternal and fetal outcome was recorded.
The results showed the following: Different methods were tried to preserve the uterus including bilateral uterine artery ligation in 13 (59%) cases, bilateral ovarian artery ligation in 3 (13.6%) cases, bilateral internal iliac artery ligation in 3 (13.6%) cases, intrauterine tamponade in 4 (18.1%) cases and hemostatic sutures in placental bed in 11(50%) cases, while B-lynch suture was not done, while procedures which were performed to control pelvic hemorrhage after hysterectomy included internal iliac artery ligation in 8 (27.5%) cases, pelvic packing in 5 (17.2%) cases and internal iliac balloon inflation to control hemorrhage in 1 (3.4%) case.
The postoperative complications were DIC occurred in 2 patients (4.8%), ICU admission occurred in 5 cases (11.9%), two cases required reoperations, one patient (2.4%) had wound infection, Postpartum collapse occurred in 2 case (4.8%). Pulmonary embolism occurred in 1 case (2.4%), Median duration of hospital stay was 4 days (range: 2-25).
The greatest challenge in modern obstetrics remains the morbidly adherent placenta (MAP). At the time of placental separation, the maternal risk tends to result in extreme hemorrhage, disseminated intravascular coagulation (DIC), significant need for blood transfusion, intensive care, hysterectomy and sometimes maternal death [1,2].
A multidisciplinary approach is important in treating these patients to reduce MAP-associated morbidity and mortality. The anticipation and management of major hemorrhage, including the availability of packed cells, platelets, fresh frozen plasma, cryoprecipitate and activated factor VII, should be given special consideration. The technology of interventional radiology [3].
Balloon catheter Occlusion of the pelvic arteries or Selective Arterial Embolization reduces blood flow to the uterus and allows surgery to be conducted in simpler and more controlled conditions. Until peripartum hysterectomy, bilateral internal iliac artery ligation is performed in an effort to reduce the surgical blood loss. This is particularly relevant in circumstances where interviews take place [4].
Few other surgical approaches have been identified, including a hysterectomy, to achieve hemostasis in MAP cases. You may "excision the placental spot" If the placental attachment region is focal and the majority of the placenta is removed, then a "wedge resection" of the region can be carried out [5,6].
The goal of this research is to examine various management methods for patients with morbidly adherent placenta and their impact on pregnancy outcomes in order to find the best management approach for decreasing
.MAP-related morbidity and mortality
Patients and Methods:
The present study is a prospective study for pregnant women who were diagnosed as morbidly adherent placenta and hospitalized between January 2019 to February 2020 at the Obstetrics and Gynecology Department, Benha University. Egypt
Inclusion criteria:
All cases of placenta previa in the third trimester admitted to Zagazig University Hospitals and diagnosed antenatally as morbidly adherent placenta.
Exclusion criteria:
Any medical disorder with pregnancy as anemia, hypertension, diabetes, cardiac lesion, liver diseases or kidney diseases.
Sample size:
The total number of morbidly adherent placenta previa cases admitted to Hospitals per month about 7 cases, so all admitted cases during the period of the study were included equal 42 cases.
Each woman was subjected to the following:
Examination:
General examination:
Abdominal examination:
Laboratory investigations:
A blood sample was withdrawn to check for complete blood count, coagulation profile, liver function tests, renal function tests and random blood sugar.
A urine sample was taken to check for proteinuria, hematuria and presence of urinary tract infection.
Blood group, cross matching for blood and plasma before operation
Ultrasound:
Ultrasound was performed for each patient to confirm viability, gestational age, fetal biometry, fetal presentation, amount of liquor and detailed assessment of placental site, degree of adherence by 2D ultrasound and Doppler
Sonographic features of morbidly adherent placenta by 2D ultrasound:
Retroplacental sonolucent zone deficiency;
The lacunae vascular.
Thinning myometrials.
Bladder line breakage.
Exophytic masses present.
Characteristic findings on color Doppler ultrasound include:
A diffuse lacunar flow pattern with high-velocity pulsatile venous type flow (peak systolic velocity more than 15cm/s) spread throughout the placenta, myometrium and cervix.
A central lacunar flow pattern with turbulent flow distributed regionally or focally in the parenchyma.
Bladder–uterine serosal interphase hyper vascularity.
Markedly dilated vessels over the peripheral sub placental zone.
An absence of sub placental vascular signals in the areas lacking the peripheral sub placental hypo echoic zone.
Abnormal vascular channels linking the placenta to the bladder.
Counselling:
Counseling for the severity of the case.
Counseling about different management options up to hysterectomy.
Counseling about the gestational age of termination and possibility of incubator admission.
Counselling about the desire for future fertility.
Consenting:
An informed written consent about different management options that may reach to hysterectomy was taken from all patients and their husbands and about the need to blood and blood products during the operation and risk of mortality.
Surgical techniques:
All cases with MAP were operated by a senior obstetrician with attendance of a senior anesthesiologist.
General anesthesia was given to all patients.
Prophylactic antibiotic was given before skin incision.
Skin incision: midline or pfannenstiel incision.
Uterine incision: high transverse incision or vertical upper segment incision.
Delivery of the baby.
Hysterectomy without attempt placental removal or trial placental removal followed by conservatives' procedures was left to the experience of the senior obstetrician operating the patient.
Bilateral internal iliac ballon was inserted before operation and inflated after delivery of the baby to decrease blood loss during surgery in one case.
If bladder or ureteric injury was suspected urological consultation was done.
Postoperative care:
Complete blood count and packed RBCs transfusion if the patient was anemic.
Early mobilization, good hydration and prophylactic anticoagulant if needed to prevent DVT.
After discharge the patients returned to outpatient clinic to remove stitches and their wounds were examined for infection.
Estimation of blood loss:
Real blood loss (ABL) was estimated from a gross formula modification
Actual blood loss= BV {Hct(i) − Hct(f)}/ Hct(m) BV: volume of blood. Blood volume is determined by using the following formula, dependent on body weight. Blood volume= Body weight (in Kg) at 70 Hct(i): initial hematocrit Hct(f): final hematocrit Hct(m)
Neonatal care:
All neonates were examined by pediatrician with detection of APGAR score, gender and birth weight.
Statistical analysis:
Data collected, recorded, entered and analyzed using Microsoft Excel software throughout history, basic clinical evaluation, laboratory investigations and outcome measures. Data was then imported into the Social Sciences version 16.0 Statistical Package. (V16 SPSS). Depending on the type of qualitative data expressed as number and percentage
The present retrospective research was performed over the period from December 2018 to May 2019 on cases of morbidly-adherent placenta prioria. This research contained a total of 42 cases of morbidly-adherent placenta prioria.
as shown in table (1). Among the included 42 women with morbidly- adherent placenta previa, 20 (47.61%) cases presented with antepartum hemorrhage (APH), Among the included 42 women, morbid placental adherence by preoperative U/S was in the form of ‘focal accreta’ in 13 (31%) women, ‘accreta’ in 14 (33.4%) women, ‘increta’ in 10 (23.8%) women and ‘percreta’ in 5 (11.9%) women, as shown in table (2) Among the included 42 women with morbidly-adherent placenta previa, 14 (33.3%) cases had urgent surgery due to antepartum hemorrhage or uterine contraction, while 28 (66.7%) had elective surgery, Trial of placental removal plus application of conservative measures was done in 22 (52.4%) women that succeeded in 13 (31%) women (CS only) and
failed in 9 (21.4%) women (hysterectomy), Hysterectomy was done in 20(47.6%) women from the start without trial of placental removal, Among the included 42 women, midline incision was done in 13 (31%) cases and pfannenstiel incision was done in 29 (69%) women as shown in table (3)
Intraoperatively, removal of the placenta was tried in 22 (52.4%) cases, different methods were tried to preserve the uterus including bilateral uterine artery ligation in 13 (59%) cases, bilateral ovarian artery ligation in 3 (13.6%) cases, bilateral internal iliac artery ligation in 3 (13.6%) cases, intrauterine tamponade (uterine pack or Foley catheter) was placed in 4 (18.1%) cases and hemostatic sutures in placental bed in 11(50%) cases, while B-lynch suture was not done, Intraoperatively, procedures which were performed to control pelvic hemorrhage after hysterectomy included internal iliac artery ligation in 8 (27.5%) cases, pelvic packing in 5 (17.2%) cases and internal iliac balloon inflation to control hemorrhage in 1 (3.4%) case, Bladder injury occurred in 7(16.7%) cases and ureteric injury occurred in only 1 (2.4%) case with ureteric stent insertion, while vascular and intestinal injury did not occur as shown in table (4)
The estimated median blood loss intraoperatively was 2 L (range: 1–8 L). Both cases need transfusion into the blood. The median was four units (range: 1–17). FFP transfusion overall concentrations were 39/42 (92.85 per cent). The median was 2 units (range: 1–8 units). Only 2 (4.76 per cent) women received platelet transfusion and only 3 (7.14 per cent) women were transfused with cryoprecipitate. Only 1 (2.4%) woman needed recombinant activated factor vii due to DIC, Of the included 42 women, 2 (4.8%) cases developed DIC, 5 (11.9%) cases were admitted to
ICU postoperatively, 1 (2.4%) case developed wound infection, 1 (2.4%) case developed pulmonary embolism , 2 (4.8%) women developed postpartum collapse and 2 (4.8%) cases were re-operated again (for evacuation of hematoma and the second case for removal of abdominal packs which was left to control pelvic hemorrhage after hysterectomy) , only 1 (2.4%) case died during the study period from internal hemorrhage, According to table (5), the median hospital stay after delivery was 4 days (range: 2-25 days).
Of the 42 neonates who were included, 24 (57.1%) were males, while 18 (42.8%) were females. As shown in table (6), the median birth weight was 3.1Kg (range: 1.6–3.8Kg) and the median Apgar score was 7 (range: 1– 9).
Although, until recently, Morbidly attached placenta has been considered a relatively rare occurrence, its annual incidence seems to be rising. In 1994, the incidence of morbidly adherent placenta over the previous 10 years was estimated to be 1 in 2510 cases, while a 2002 study recorded an incidence of 1 in 533 cases over the preceding 20 years and an incidence of 1 in 210 cases in 2006 (8,9).
In the current study 42 cases diagnosed prenatal as morbidly adherent placenta, In 20(47.6%) women hysterectomy was done without trial of placenta removal, In 22(52.4%) women trial of placental removal was done preceded by uterine massage and uterotonics and followed by conservatives procedures to control bleeding from the placental bed. Due
to absence of management protocol for morbidly adherent placenta in our emergency hospital, so hysterectomy without attempt placental removal or trial placental removal followed by conservatives procedures was left to the experience of the senior obstetrician operating the patient.
Generally speaking, trial placental removal was performed in many cases mainly due to low parity of many patients and their desire for future fertility and prenatal U/S (greyscale and Doppler) not has 100
In conclusion, up till now there is not completely sensitive and specific test for the diagnosis of MAP, when morbidly adherent placenta is diagnosed or suspected antenatally, delivery should be scheduled in a tertiary care center with appropriate expertise and facilities. Generally, the recommended management is cesarean hysterectomy. However, this approach might not be considered the first line of treatment in women who have a strong desire for future fertility. Therefore, surgical management of morbidly adherent placenta may be individualized, available quantity of blood products and multidisciplinary approach may reduce maternal morbidity and mortality in these patients, Good anticipation and timely decision is the key to success in this life- threatening condition.
Recommendations:
The recommended management for morbidly adherent placenta is hysterectomy without attempt placental removal especially if there are signs of placental invasion, but in nulliparous women we recommended conservative measures to safe the uterus and no hurry for hysterectomy to give the chance for placental separation.
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